From: Samuel Holland <samuel@xxxxxxxxxxxx> [ Upstream commit 0f5209fee90b4544c58b4278d944425292789967 ] The generic IPI code depends on the IRQ affinity mask being allocated and initialized. This will not be the case if SMP is disabled. Fix up the remaining driver that selected GENERIC_IRQ_IPI in a non-SMP config. Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220701200056.46555-3-samuel@xxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/irqchip/Kconfig | 2 +- kernel/irq/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 8f9c52873338..ae1b9f59abc5 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -171,7 +171,7 @@ config MADERA_IRQ config IRQ_MIPS_CPU bool select GENERIC_IRQ_CHIP - select GENERIC_IRQ_IPI if SYS_SUPPORTS_MULTITHREADING + select GENERIC_IRQ_IPI if SMP && SYS_SUPPORTS_MULTITHREADING select IRQ_DOMAIN select GENERIC_IRQ_EFFECTIVE_AFF_MASK diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index fbc54c2a7f23..00d58588ea95 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -82,6 +82,7 @@ config IRQ_FASTEOI_HIERARCHY_HANDLERS # Generic IRQ IPI support config GENERIC_IRQ_IPI bool + depends on SMP select IRQ_DOMAIN_HIERARCHY # Generic MSI interrupt support -- 2.35.1
